The duo was fired upon at their locality in Parihar Mohalla in Kishtwar town, about 217 km south of Srinagar city, the summer capital of Indian-controlled Kashmir.

"This evening gunmen killed BJP state secretary Anil Parihar and his brother Ajit Parihar while they were walking towards their residence," a senior police official told Xinhua. "The duo was shot from a point-blank range."

Locals said the two were immediately taken to the nearest hospital but doctors there declared them dead.

Police were trying to ascertain if the attack was carried out by militants or it was a criminal incident.

"It is too early to tell who is behind the attack," the official said.

"Deeply shocked by the killing of a dear party colleague and BJP J&K State Secretary Anil Parihar and his brother. No words to express the grief. Rushing to Kishtwar at the earliest... that is the only thought on mind," Singh tweeted.